Mesoscopic fluctuations of the pairing gap

Sven Åberg, Henrik Uhrenholt, Patricio Leboeuf

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

2 Citations (SciVal)


A description of mesoscopic fluctuations of the pairing gap in finite-sized quantum systems based on periodic orbit theory is presented. The size of the fluctuations are found to depend on quite general properties. We distinguish between systems where corresponding classical motion is regular or chaotic, and describe in detail fluctuations of the BCS gap as a function of the size of the system. The theory is applied to different mesoscopic systems: atomic nuclei, metallic grains, and ultracold fermionic gases. We also present a detailed description of pairing gap variation with particle number for nuclei based on a deformed cavity potential.
Original languageEnglish
Title of host publicationAIP CONFERENCE PROCEEDINGS
EditorsDanielewicz P, Piecuch P, Zelevinsky V
PublisherAmerican Institute of Physics (AIP)
Number of pages12
Publication statusPublished - 2008
Event2nd Workshop on Nuclei and Mesoscopic Physics, 2007 - ichigan State Univ, NSCL, E Lansing, MI, Lansing, Mi, United States
Duration: 2007 Oct 202007 Oct 22
Conference number: 2

Publication series

ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


Workshop2nd Workshop on Nuclei and Mesoscopic Physics, 2007
Country/TerritoryUnited States
CityLansing, Mi

Bibliographical note

The information about affiliations in this record was updated in December 2015.
The record was previously connected to the following departments: Mathematical Physics (Faculty of Technology) (011040002)

Subject classification (UKÄ)

  • Physical Sciences


  • fluctuations
  • pairing gap
  • order/chaos
  • semiclassical methods
  • BCS theory


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